Abstract: | The paper is concerned with dynamic models that allow for non-zero excess demand on goods markets but abstain from considering possible feedback effects of stock-piling. That is, inventories are only implicitly determined. Consistency requires that they do not fall below zero and, relative to output, do not grow beyond all bounds. With respect to periodic motions, conditions for consistency as well as for inconsistency are derived. It is indicated that a priori, in particular in the presence of long-run growth, inconsistency may not be an exception. |